Abstract:A systematic investigation of soil chromium in the region of Jieyang City was carried out, 1330 samples of surface soil and 331 samples of deep soil were collected systematically and analyzed for content, spatial structure and distribution characteristics of Cr. The enrichment factor method was utilized to analyze the pollution status of Cr, the structural characteristics, Moran index and spatial agglomeration effect. Cr were analyzed by software such as Geoda and GS+, the spatial distribution and influence factors of Cr were analyzed by GIS spatial analysis and variance analysis technique. The results showed that there was no obvious pollution status of soil Cr in study area, the average Cr content of surface soil was 22.39mg/kg, which was lower than the soil background value of 27.88mg/kg in Jieyang City, and much lower than the soil background value of 50.50mg/kg in Guangdong Province. The enrichment factor method showed that the degree of Cr pollution in the study area was mostly non-polluting and slight pollution, accounting for 75.11% and 23.46%, respectively. The Moran index value was 0.52, indicating that the study area had positive correlation aggregations. The “hot spots” were mainly distributed in the southeastern part of Rongcheng, Jiedong district, the south-central part of Jiexi county, the north and southwest of Huilai county; the “ice spots” were mainly distributed in the southwest of Jiexi county and the coastal area south of Huilai county, which were basically consistent with the spatial distribution characteristics of Cr content. The soil Cr was mainly affected by the parent material, with higher Cr content in siltstone and shale, and lower content in the sandy parent material. The content of Cr in paddy soil was higher in different soil types, and the content of sandy soil was lower. The difference in Cr content under different land use patterns was not obvious, and the Cr content was not significantly affected by human activities.